Problem: What is the IUPAC name for CH3CH2CH2CH2OCH2CH3?A) 1-ethoxybutaneB) 1-butoxyethaneC) ethyl butyl etherD) 1-ethoxyhexaneE) none of these

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We are asked to give the IUPAC name for CH3CH2CH2CH2OCH2CH3

Give the longest carbon chain the root name, then name the smaller chain as an alkoxy substituent.  


  • CH3CH2CH2CH2 → Longest chain → 4 carbon chain→Butane
  • CH2CH3alkoxy substituent → 2 carbon chain→ ethoxy

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Problem Details

What is the IUPAC name for CH3CH2CH2CH2OCH2CH3?

A) 1-ethoxybutane

B) 1-butoxyethane

C) ethyl butyl ether

D) 1-ethoxyhexane

E) none of these

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